The ratio of the moments of resistance of a solid circular shaft of di – McqOptions

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1.	The ratio of the moments of resistance of a solid circular shaft of diameter D and a hollow shaft (external diameter D and internal diameter d), is
A.	D 4 /(D 4 - d 4 )
B.	D 3 /(D 3 - d 3 )
C.	(D 4 - d 4 )/D 4
D.	(D 3 - d 3 )/D 3
Answer» B. D 3 /(D 3 - d 3 )

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